High nutrient transport and cycling potential revealed in the microbial metagenome of Australian sea lion (Neophoca cinerea) faeces.

Metagenomic analysis was used to examine the taxonomic diversity and metabolic potential of an Australian sea lion (Neophoca cinerea) gut microbiome. Bacteria comprised 98% of classifiable sequences and of these matches to Firmicutes (80%) were dominant, with Proteobacteria and Actinobacteria repres...

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Autores principales:	Trish J Lavery, Ben Roudnew, Justin Seymour, James G Mitchell, Thomas Jeffries
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2012
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/6c71dd2c37534339b1971efc0e97b25a
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spelling	oai:doaj.org-article:6c71dd2c37534339b1971efc0e97b25a2021-11-18T07:19:03ZHigh nutrient transport and cycling potential revealed in the microbial metagenome of Australian sea lion (Neophoca cinerea) faeces.1932-620310.1371/journal.pone.0036478https://doaj.org/article/6c71dd2c37534339b1971efc0e97b25a2012-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/22606263/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203Metagenomic analysis was used to examine the taxonomic diversity and metabolic potential of an Australian sea lion (Neophoca cinerea) gut microbiome. Bacteria comprised 98% of classifiable sequences and of these matches to Firmicutes (80%) were dominant, with Proteobacteria and Actinobacteria representing 8% and 2% of matches respectively. The relative proportion of Firmicutes (80%) to Bacteriodetes (2%) is similar to that in previous studies of obese humans and obese mice, suggesting the gut microbiome may confer a predisposition towards the excess body fat that is needed for thermoregulation within the cold oceanic habitats foraged by Australian sea lions. Core metabolic functions, including carbohydrate utilisation (14%), protein metabolism (9%) and DNA metabolism (7%) dominated the metagenome, but in comparison to human and fish gut microbiomes there was a significantly higher proportion of genes involved in phosphorus metabolism (2.4%) and iron scavenging mechanisms (1%). When sea lions defecate at sea, the relatively high nutrient metabolism potential of bacteria in their faeces may accelerate the dissolution of nutrients from faecal particles, enhancing their persistence in the euphotic zone where they are available to stimulate marine production.Trish J LaveryBen RoudnewJustin SeymourJames G MitchellThomas JeffriesPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 7, Iss 5, p e36478 (2012)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Trish J Lavery Ben Roudnew Justin Seymour James G Mitchell Thomas Jeffries High nutrient transport and cycling potential revealed in the microbial metagenome of Australian sea lion (Neophoca cinerea) faeces.
description	Metagenomic analysis was used to examine the taxonomic diversity and metabolic potential of an Australian sea lion (Neophoca cinerea) gut microbiome. Bacteria comprised 98% of classifiable sequences and of these matches to Firmicutes (80%) were dominant, with Proteobacteria and Actinobacteria representing 8% and 2% of matches respectively. The relative proportion of Firmicutes (80%) to Bacteriodetes (2%) is similar to that in previous studies of obese humans and obese mice, suggesting the gut microbiome may confer a predisposition towards the excess body fat that is needed for thermoregulation within the cold oceanic habitats foraged by Australian sea lions. Core metabolic functions, including carbohydrate utilisation (14%), protein metabolism (9%) and DNA metabolism (7%) dominated the metagenome, but in comparison to human and fish gut microbiomes there was a significantly higher proportion of genes involved in phosphorus metabolism (2.4%) and iron scavenging mechanisms (1%). When sea lions defecate at sea, the relatively high nutrient metabolism potential of bacteria in their faeces may accelerate the dissolution of nutrients from faecal particles, enhancing their persistence in the euphotic zone where they are available to stimulate marine production.
format	article
author	Trish J Lavery Ben Roudnew Justin Seymour James G Mitchell Thomas Jeffries
author_facet	Trish J Lavery Ben Roudnew Justin Seymour James G Mitchell Thomas Jeffries
author_sort	Trish J Lavery
title	High nutrient transport and cycling potential revealed in the microbial metagenome of Australian sea lion (Neophoca cinerea) faeces.
title_short	High nutrient transport and cycling potential revealed in the microbial metagenome of Australian sea lion (Neophoca cinerea) faeces.
title_full	High nutrient transport and cycling potential revealed in the microbial metagenome of Australian sea lion (Neophoca cinerea) faeces.
title_fullStr	High nutrient transport and cycling potential revealed in the microbial metagenome of Australian sea lion (Neophoca cinerea) faeces.
title_full_unstemmed	High nutrient transport and cycling potential revealed in the microbial metagenome of Australian sea lion (Neophoca cinerea) faeces.
title_sort	high nutrient transport and cycling potential revealed in the microbial metagenome of australian sea lion (neophoca cinerea) faeces.
publisher	Public Library of Science (PLoS)
publishDate	2012
url	https://doaj.org/article/6c71dd2c37534339b1971efc0e97b25a
work_keys_str_mv	AT trishjlavery highnutrienttransportandcyclingpotentialrevealedinthemicrobialmetagenomeofaustraliansealionneophocacinereafaeces AT benroudnew highnutrienttransportandcyclingpotentialrevealedinthemicrobialmetagenomeofaustraliansealionneophocacinereafaeces AT justinseymour highnutrienttransportandcyclingpotentialrevealedinthemicrobialmetagenomeofaustraliansealionneophocacinereafaeces AT jamesgmitchell highnutrienttransportandcyclingpotentialrevealedinthemicrobialmetagenomeofaustraliansealionneophocacinereafaeces AT thomasjeffries highnutrienttransportandcyclingpotentialrevealedinthemicrobialmetagenomeofaustraliansealionneophocacinereafaeces
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High nutrient transport and cycling potential revealed in the microbial metagenome of Australian sea lion (Neophoca cinerea) faeces.

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